摘要
新研制的工程电磁场综合实验装置包括电流场测量、交直流电磁场测量、部分电容测量、罗氏线圈特性研究4个实验。测量真实电缆电容是电磁场实验的难点,大多数学校部分电容测量实验多利用模拟电缆替代,而该装置利用RLC数字电桥技术开创性地实现了短尺寸真实电缆部分电容实物测量。同时,利用罗氏线圈测量大电流,填补了同类实验装置的空白。该装置实验内容均为验证性实验,贴近工程实际,符合专业特色,增强了学生的学习兴趣,培养了学生的创新意识。
In this paper,a new scheme of engineering electromagnetic field integrative experimental device for AC and DC electromagnetic field measurement,current field measurement,and Rogowski coil characteristicsis is introduced.Measuring the real cable capacitance is the difficulty of the electromagnetic field experiment.Compared with other institutes,RLC digital electric bridge technology is utilized to measure the capacitance of short length real cable,instead of measuringvirtual cable.Also,heavycurrentmeasuringis realized based on Rogowski coil,which fills the gaps in similar engineering electromagnetic experimental devices.At the same time,focusing on verification experiment,actual engineering,and specialized characteristics,the device can mobilize and enhance the enthusiasm and innovation of the students.
作者
徐慧平
肖波
杨风开
XU Huiping;XIAO Bo;YANG Fengkai(School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)
出处
《实验科学与技术》
2018年第2期60-64,共5页
Experiment Science and Technology
基金
华中科技大学2013年技改项目(校设[2013]5号)
关键词
程电磁场
部分电容
罗氏线圈
RLC数字电桥
engineering electromagnetic field
partial capacitor
rogowski coil
RLC digital bridge
